Research Article
A Factorial Design to Numerically Study the Effects of Brake Pad Properties on Friction and Wear Emissions
Table 2
24-run full design matrix with four factors.
| Test | | WP | WR | |
| 1 | − | − | − | − | 2 | + | − | − | − | 3 | − | 0 | − | − | 4 | + | 0 | − | − | 5 | − | + | − | − | 6 | + | + | − | − | 7 | − | − | + | − | 8 | + | − | + | − | 9 | − | 0 | + | − | 10 | + | 0 | + | − | 11 | − | + | + | − | 12 | + | + | + | − | 13 | − | − | − | + | 14 | + | − | − | + | 15 | − | 0 | − | + | 16 | + | 0 | − | + | 17 | − | + | − | + | 18 | + | + | − | + | 19 | − | − | + | + | 20 | + | − | + | + | 21 | − | 0 | + | + | 22 | + | 0 | + | + | 23 | − | + | + | + | 24 | + | + | + | + |
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